Baltimore Ravens quarterback Joe Flacco (5) is lifted into the air by teammates after defeating the San Francisco 49ers 34-31 in the NFL Super Bowl XLVII football game, Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Bill Haber) less

Baltimore Ravens quarterback Joe Flacco (5) is lifted into the air by teammates after defeating the San Francisco 49ers 34-31 in the NFL Super Bowl XLVII football game, Sunday, Feb. 3, 2013, in New Orleans. (AP ... more

San Francisco 49ers kicker David Akers (2) makes a 36-yard field goal during the first half of the NFL Super Bowl XLVII football game against the Baltimore Ravens, Sunday, Feb. 3, 2013, in New Orleans.

San Francisco 49ers kicker David Akers (2) makes a 36-yard field goal during the first half of the NFL Super Bowl XLVII football game against the Baltimore Ravens, Sunday, Feb. 3, 2013, in New Orleans.

Jennifer Hudson performs with students from Sandy Hook Elementary School singing "America the Beautiful" before NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Gerald Herbert) less

Jennifer Hudson performs with students from Sandy Hook Elementary School singing "America the Beautiful" before NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens ... more

Jennifer Hudson performs with students from Sandy Hook Elementary School before NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Charlie Riedel) less

Jennifer Hudson performs with students from Sandy Hook Elementary School before NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens Sunday, Feb. 3, 2013, in New Orleans. ... more

NEW ORLEANS, LA - FEBRUARY 03: Alex Smith #11 of the San Francisco 49ers walks onto the field during warm ups prior to Super Bowl XLVII against the Baltimore Ravens at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. less

NEW ORLEANS, LA - FEBRUARY 03: Alex Smith #11 of the San Francisco 49ers walks onto the field during warm ups prior to Super Bowl XLVII against the Baltimore Ravens at the Mercedes-Benz Superdome on February ... more

NEW ORLEANS, LA - FEBRUARY 03: Alison Harbaugh (L), Ingrid Harbaugh (2nd R), and Jackie Harbaugh (R) pose for a picture on the field prior to the Super Bowl XLVII at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. less

NEW ORLEANS, LA - FEBRUARY 03: Alison Harbaugh (L), Ingrid Harbaugh (2nd R), and Jackie Harbaugh (R) pose for a picture on the field prior to the Super Bowl XLVII at the Mercedes-Benz Superdome on February 3, ... more

A San Francisco 49ers play runs past an NFL logo before the start of the NFL Super Bowl XLVII football game against the Baltimore Ravens Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Charlie Riedel)

A San Francisco 49ers play runs past an NFL logo before the start of the NFL Super Bowl XLVII football game against the Baltimore Ravens Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Charlie Riedel)

Photo: Charlie Riedel, Associated Press

A San Francisco 49ers play runs past an NFL logo before the start... Photo-4132645.56184 - seattlepi.com

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Baltimore Ravens linebacker Ray Lewis, left, prepares to embrace Baltimore Ravens head coach John Harbaugh before the NFL Super Bowl XLVII football game against the San Francisco 49ers, Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Elise Amendola) less

Baltimore Ravens linebacker Ray Lewis, left, prepares to embrace Baltimore Ravens head coach John Harbaugh before the NFL Super Bowl XLVII football game against the San Francisco 49ers, Sunday, Feb. 3, 2013, in ... more

Baltimore Ravens fan Cindy Piece poses for a photo before the NFL Super Bowl XLVII football game between the Ravens and the San Francisco 49ers Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Marcio Sanchez)

Baltimore Ravens fan Cindy Piece poses for a photo before the NFL Super Bowl XLVII football game between the Ravens and the San Francisco 49ers Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Marcio Sanchez)

NEW ORLEANS, LA - FEBRUARY 03: Head coach Jim Harbaugh taps Colin Kaepernick #7 of the San Francisco 49ers on the chest during warm ups prior to Super Bowl XLVII against the Baltimore Ravens at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. less

NEW ORLEANS, LA - FEBRUARY 03: Head coach Jim Harbaugh taps Colin Kaepernick #7 of the San Francisco 49ers on the chest during warm ups prior to Super Bowl XLVII against the Baltimore Ravens at the ... more

San Francisco 49ers co-chair Denise York, left, talks to running back Frank Gore, right, before the NFL Super Bowl XLVII football game against the Baltimore Ravens, Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/David Goldman) less

San Francisco 49ers co-chair Denise York, left, talks to running back Frank Gore, right, before the NFL Super Bowl XLVII football game against the Baltimore Ravens, Sunday, Feb. 3, 2013, in New Orleans. (AP ... more